Have fun
https://kensfish.com/products/cascade-500-replacement-hose-set-2?_pos=7&_sid=e246b89bb&_ss=r
if the above is not it, keep reading below.
Hose does not have to be from the filter's manufacturer. You can buy all kinds of hose from a decent hardware store or places like home Depot, Lowes etc.
So, that to need to know are the dimensions of the hose you now have, There are 2 that matter. The Indside Diameter (
ID) and the Outside Diameter (
OD). The difference between those two numbers is the thickness of the hose.
I pokes around the net looking for info on your filter. I came up with the fact that the manufaturer offers info on the hoses it used to (?) sell. It is green and listed as 3/4" ID and 1" OD (.25" thick). Measure your hose and if it matches you can buy the needed hose locally I hope. And it is sold by the foot normally and you can buy what you need or some extra JIK.
Look here. But poke around some as you need 1" in OD. You do not need tinted but they have ine green hose but it is 63/64" OD which should be fine. I use those SS hose clamps on all my canister hose connections. I use inline heaters, so one canister requires 6 clamps.
https://www.amazon.com/s?k=flexible...ose+3/4+id+clear,industrial,80&ref=nb_sb_noss